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Codec: avc1.42102a

99.62% Encoder Support
62,703 of 62,942 sessions supported encoding
99.97% Decoder Support
11,831 of 11,835 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Baseline
Level 4.2
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 50 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,942 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.77% 27,535 / 27,599 99.93% 4,369 / 4,372 — 99.76% 12,216 / 12,245 98.85% 1,549 / 1,567
SafariSafari
 — 99.94% 1,645 / 1,646 100.0% 7,075 / 7,075 — —
EdgeEdge
 100.0% 5,033 / 5,033 100.0% 55 / 55 — 100.0% 105 / 105 —
FirefoxFirefox
 95.24% 2,079 / 2,183 100.0% 277 / 277 — 0.0% 0 / 12 97.95% 286 / 292

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,835 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 100.0% 5,162 / 5,162 100.0% 694 / 694 — 100.0% 2,262 / 2,262 99.2% 374 / 377
SafariSafari
 — 100.0% 261 / 261 100.0% 1,386 / 1,386 — —
EdgeEdge
 100.0% 1,050 / 1,050 — — 100.0% 32 / 32 —
FirefoxFirefox
 100.0% 407 / 407 100.0% 48 / 48 — — 100.0% 56 / 56